Authors & Presenters

Margarita Espino Calderón, PhD, is professor emerita and senior research scientist at the Johns Hopkins University School of Education. She has conducted research, training, and curriculum development for teaching K–12 English learners.

Diane Kerr, a consultant, was assistant principal at Mason Crest Elementary School, Fairfax County Public Schools, Virginia. She has supervised and led multiple teams, providing services to schools, parents, and students.

Katherine McCluskey is the Assistant Superintendent of Teaching, Learning and Accountability at Glen Ellyn School District 41 in Illinois. A former K–12 teacher, she has worked with students and staff with a wide range of socioeconomic backgrounds.

Hector Montenegro, EdD, provides training on instructional strategies for English learners, leadership development for administrators and instructional coaches, and the teacher coaching process through the use of technology.

Kathy Perez, EdD, is a professor emerita at Saint Mary’s College of California. She has extensive teaching experience as a general and special educator, literacy/ESL coach, administrator, and curriculum/staff-development coordinator.

Carol Rothenberg has worked with elementary and secondary schools through the New Arrival Center for the San Diego Unified School District, training teachers and administrators on effective programs and instruction for English learners.

Shawn Slakk is the vice president and senior professional development consultant for Margarita Calderón & Associates, with more than 30 years of success in instruction at the school, district, and state level; education leadership; and professional-development consulting.

Maria N. Trejo, EdD, is a consultant who provides training, coaching, and instructional leadership support. She also designs professional development events, webinars, and international teacher exchanges.